JP3946565B2 - Magnetic door locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a magnet-type door locking device, and more particularly to a magnet-type door locking device having functions as a door stop, a steady rest, and an opening tool.
[0002]
[Prior art]
2. Description of the Related Art In recent years, steady-state devices having various structures that achieve barrier-free have been developed as steady-state devices that lock a door.
Usually, in these steady rests, the height of the floor fitting is lowered by sucking the locking member using the magnetic attractive force of the magnet.
[0003]
(Conventional example)
For example, in Japanese Patent Application Laid-Open No. 2001-3627, there is a door locking device in which a locking piece is rotatably attached to the floor surface, the locking piece is rotated upward by a magnetic attractive force, and the door is locked. Proposed.
FIG. 14 is a schematic cross-sectional view for explaining the structure of the door locking device in the above publication.
In the figure, a door locking device 100 is fixed to a lower portion of a door 107, is fixed to a locked member 108 in which a magnet 109 is embedded, and a floor surface 102, and a locking piece 103 is rotatable upward. The mounting plate 101 is supported, and the cover 106 covers the mounting plate 101.
[0004]
The locking piece 103 is a rectangular plate member made of a magnetic material such as iron, and both ends are folded back, and the support shaft 104 is sandwiched by a recess formed in one folded portion.
The mounting plate 101 is a plate member having an opening in which the locking piece 103 is accommodated, and a bearing hole 113 that supports the support shaft 104 is formed by folding the plate member.
[0005]
In the door locking device 100 configured as described above, when the door 107 moves and the magnet 109 reaches the upper side of the locking piece 103, the locking piece 103 is rotated upward by the magnetic attractive force, so The door 107 is prevented from moving forward and functions as a door stop.
The magnet 109 attracts the locking piece 103 to maintain the door 107 in an open state, and functions as a steady rest.
[0006]
However, if a large force is applied in the direction in which the door 107 is closed, the locking pieces 103 are not attracted by the magnet 109 and the door 107 is closed.
Therefore, in order to use the door 107 as a steady rest (an apparatus that locks the door with a constant force), it is necessary to use a strong magnet. When a strong magnet is used, the door 107 is normally closed. However, it is not practical because it requires great force. Further, it is difficult to function as an opening tool for maintaining the opened state of the door 107 only by using the magnet 109.
[0007]
Although not shown, in Japanese Patent No. 2938448, a door having substantially the same structure as that of the door locking device 100, a recess formed in the engaging member, and a protrusion formed in the engaged member. The technology of the steady rest device is disclosed.
This door steadying device is configured such that when the locking member is attracted by a magnetic attractive force, the protrusion locks the recess of the locking member.
As a result, while the locked state is maintained, the door can be fixed against the force of closing the door. Further, when the door is closed with a force sufficient to release the locked state, the lock is released, so that the door can be closed.
[0008]
[Problems to be solved by the invention]
As described above, the conventional door locking device and door steadying device using magnets function as a door stop or steadying, but cannot function as a door opening tool.
[0009]
In particular, the door opener disclosed in Japanese Patent No. 2938448 has a problem in that it requires a large number of work steps because the mounting portion of the metal fitting must be formed in advance on the floor because the locking portion protrudes from the floor. there were.
Furthermore, it is necessary to perform the mounting position adjustment of the base (floor metal fittings) with high accuracy so that the protrusion is locked to the concave portion of the engaging member. There is a disadvantage in that the locking force is reduced and cannot be used as a steady rest.
[0010]
Further, the door locking device disclosed in Japanese Patent Laid-Open No. 2001-3627 has a structure in which the support shaft 104 is sandwiched by a recess formed in the folded portion, and the thickness of the folded portion is formed by the recessed portion. As a result, the film becomes thinner and the mechanical strength is reduced.
[0011]
In order to solve the above-described problems, an object of the present invention is to provide a magnetic door locking device having functions as a door stop, a steady rest, and an opening tool.
[0012]
[Means for Solving the Problems]
In order to achieve this object, the magnet type door locking device of the present invention is fixed to the floor surface, the floor bracket to which the locking member is rotatably attached, the door is attached to the locking member, A door stop member that locks the door by abutting or engaging the lock member, and the door stop member is provided at the center of the bottom surface of the door stop member. A magnet to be attracted, a door contact portion provided on the bottom door side of the door stop member, and when the door is opened, a door stop portion that comes into contact with the locking member sucked by the magnet; An anti-sway locking portion that is provided on the door side so as to face the door stop, and that comes into contact with the locking member sucked by the magnet when the opened door returns in the closing direction; It is the door-side end of the door stop member and the locking portion for the steady rest Ri is provided in the counter-door side engaged with the locking member is rotated to the door side, it is constituted with an open securing means for maintaining the state of being opened the door.
By doing in this way, the three functions of a door stop, a steady rest, and an opening tool can be exhibited.
[0013]
Moreover, the magnet type door latching device of this invention has the said latching | locking latching part as the shape which rose in the circular arc shape in the middle step of the slope formed in the said non-door side bottom face.
By doing in this way, the latching force which latches a door can be increased.
[0014]
Further, in the magnet type door locking device of the present invention, the opening and fixing means includes a chamfered surface with which the locking member rotated to the door side contacts, and the locking member so that the door does not close. The fixing locking groove for locking and the stopper for locking the door so as not to open further are provided.
[0015]
By doing in this way, the parts of the open fixing means can be shared and the number of parts can be reduced, so that the cost can be reduced accordingly. Moreover, even if it is going to open a door further with a stopper, it can fix so that a door may not open.
[0016]
Further, the magnet type door locking device of the present invention includes a rectangular ring-shaped locking member having a rotating shaft and a locking shaft, and a bearing portion that rotatably supports the rotating shaft. The bracket body is formed and a floor bracket cover that covers the bracket body.
In this way, when the locking member is not used, the locking shaft can be housed in the metal fitting body, and the height of the floor metal fitting can be reduced, so that the barrier can be made free.
[0017]
In the magnetic door locking device of the present invention, the bearing portion is composed of a semi-cylindrical portion bent into a semi-cylindrical shape and a locking claw that locks the rotating shaft so as not to fall.
By doing in this way, since a locking member does not remove | deviate, a floor metal fitting can be fixed easily.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the magnet type door locking device of the present invention will be described with reference to the drawings.
[0019]
FIG. 1: has shown schematic sectional drawing for demonstrating the structure of the magnet type door latching apparatus in this invention.
In the figure, reference numeral 1 denotes a magnet type door locking device, which includes a floor metal fitting 2 composed of a metal fitting main body 20, an annular locking member 3 and a floor metal fitting cover 4, and a door stop member 5.
[0020]
The floor bracket 2 is fixed to the floor surface 6 by a fixing screw 61 such as a wood screw, and the door stop member 5 is fixed to the door 7 by a fixing screw 71 such as a wood screw.
The fixing means for the floor bracket 2 and the door stop member 5 is not limited to the fixing screws 61 and 71, and may be fixed using various fixing means such as an adhesive, an adhesive sheet, and a bolt. .
[0021]
[Floor bracket]
FIG. 2 is a schematic perspective view of the floor fitting according to the present embodiment.
FIG. 3 is a schematic exploded perspective view for explaining each component of the floor bracket according to the present embodiment.
[0022]
2 and 3, the floor bracket cover 4 is a circular plate member having a slope 41 so that there is no step on the outer edge.
The floor bracket cover 4 has a storage hole 42, a screw hole 44, and a fixed reinforcing hole 45 formed from the opposite door side to the door side.
[0023]
The storage hole 42 is a substantially rectangular storage hole for storing the rectangular annular locking member 3. In addition, a relief groove 43 is formed on the door side so that the annular locking member 3 can be rotated until it fully falls to the door side.
[0024]
The storage hole 42 is provided with a fixed reinforcement receiver 47 projecting from the middle step on the side opposite to the door.
The fixed reinforcement receiver 47 is pressed from above by the fixed reinforcement presser 26 of the metal fitting body 20 so that the floor metal fitting cover 4 is not warped or twisted. In addition, an inclined surface 48 is formed below the fixed reinforcement receiver 47 so that the fixed reinforcement presser 26 can easily move upward.
[0025]
The screw hole 44 is chamfered to insert a fixing screw 61 such as a countersunk screw.
For example, when an adhesive is used instead of the fixing screw 61 as the fixing means, the screw hole 44 may not be formed.
[0026]
The fixed reinforcing hole 45 is a rectangular groove, and a fixed reinforcing receiver 46 projects from the lower portion of the side surface of the groove.
[0027]
Moreover, the recessed part which accommodates the fixing board 27 of the metal fittings main body 20 is formed in the bottom face between the accommodation hole 42 and the fixed reinforcement hole 45 (refer FIG. 1).
Although the material of the floor bracket cover 4 is resin, it is not limited to resin, and the fixed reinforcing presser 26 is elastic enough to be locked to the upper surface of the fixed reinforcing receiver 47 while sliding on the slope 48. It may be sufficient, and metal, rubber, or a composite material thereof may be used.
[0028]
Here, preferably, the height of the floor bracket cover 4 is as low as possible, for example, about 3 mm or less. In this way, the risk of catching a foot can be eliminated, and barrier-free is achieved. be able to.
[0029]
As shown in FIG. 3, the metal fitting body 20 is a plate member that is substantially rectangular when viewed from above, and a bearing portion 21 that pivotally supports the rotating shaft 31 of the annular locking member 3 at the center, and this bearing portion. The fixing plates 22, 27 located on both sides of the fixing plate 21, the fixing reinforcing presser 26 protruding from the fixing plate 22, and the fixing reinforcing presser 29 protruding from the fixing plate 27.
[0030]
The bearing portion 21 is composed of a semi-cylindrical portion 21a and a locking claw 21b. As shown in FIG. 4, the locking claw 21b protruding from both ends of the semi-cylindrical portion 21a is formed on the semi-cylindrical portion 21a. The loosely fitted rotation shaft 31 is locked so as not to fall off.
[0031]
The fixed plate 22 is connected to the opposite door side of the bearing portion 21 and is pressed upward in a convex shape up to substantially the same height as the upper surface of the floor bracket cover 4. Further, an arc-shaped chamfered surface 24 is formed at the upper part of the outer edge, and a screw hole 23 is formed at the center of the upper surface.
Moreover, the said press-working part of the fixed plate 22 is formed so that the annular locking member 3 may be loosely fitted so that the floor metal fitting 2 can be as uneven as possible.
[0032]
The fixed reinforcing presser 26 is a rectangular plate member that protrudes in the horizontal direction from the lower portion of the fixed plate 22 on the side opposite to the door, and is then bent obliquely upward and formed in the horizontal direction again.
By doing so, the storage recess 25 for storing the locking shaft 32 of the annular locking member 3 is formed.
[0033]
The fixing plate 27 is a rectangular plate member connected to the door side of the bearing portion 21, and a through hole 28 into which a fixing screw 61 is inserted is formed in the center portion. When the fixing screw 61 is tightened, it is configured to be pressed against the floor surface 6 via the floor bracket cover 4.
[0034]
The fixed reinforcing presser 29 is a rectangular plate member that protrudes upward from the lower part of the fixed plate 27 on the door side and is subsequently bent in the horizontal direction.
[0035]
The metal material of the metal fitting body 20 is made of metal, but is not limited to metal, and may have mechanical strength that supports the rotating shaft 31 or presses the fixed reinforcement receivers 46 and 47. Resin, rubber, or a composite material thereof may be used.
[0036]
The annular locking member 3 includes a rotating shaft 31 that is pivotally supported by the bearing portion 21, a locking shaft 32 that is disposed so as to face the rotating shaft 31, and an opposite of the rotating shaft 31 and the locking shaft 32. It is made into the shape of a rectangular ring which consists of the connection shaft 33 which connects the edge part to perform.
In addition, the material of the annular locking member 3 is a magnetic material so that the locking shaft 32 is attracted by the magnet 542 of the door stop member 5 and usually requires mechanical strength. These magnetic metal materials are used.
[0037]
As shown in FIG. 5, the floor bracket 2 is formed with the escape groove 43, so that the locking shaft 32 of the annular locking member 3 can be rotated in the door side direction.
Further, since the annular locking member 3 is pivotally supported by the bearing portion 21, it can freely rotate without falling off.
[0038]
In the floor bracket 2, the fixed reinforcing presser 29 of the metal fitting body 20 is inserted from below the fixed reinforcing hole 45, the metal fitting body 20 is tilted to the opposite door side, and the fixed reinforcing presser 26 is locked to the upper surface of the fixed reinforcing holder 47. Thus, the annular locking member 3, the metal fitting body 20 and the floor metal fitting cover 4 can be assembled.
Here, the fixed reinforcing presser 29 can press the fixed reinforcing support 46 from above, and the fixed reinforcing presser 26 can move while sliding on the slope 48.
[0039]
[Door-to-door members]
FIG. 6 is a schematic perspective view of a door stop member according to the present embodiment.
In the figure, the door stop member 5 includes a mounting plate 52 for mounting on the door surface and a protruding portion 51 protruding from the mounting plate.
[0040]
The protruding portion 51 has a rounded shape as a whole.
Further, the mounting plate 52 is provided with elongated holes 521 into which the fixing screws 71 for mounting to the door 7 are inserted in the vertical direction at both side ends.
For example, when an adhesive is used instead of the fixing screw 71 as the fixing means, the elongated hole 521 may not be formed.
[0041]
FIG. 7 is a schematic view for explaining the structure of the door stop member of the present embodiment, wherein (a) is a top view, (b) is a side view, (c) is a front view, and (d). Shows a bottom view.
In the figure, a guide portion 513 is provided on the lower front side of the protrusion 51 on the side opposite to the door (front side), and a fixing locking portion 531 is formed at the center of the upper surface of the guide portion 513. It is.
[0042]
The locking portion 531 for fixing has an arc-shaped chamfered surface 533 formed on the front surface, and the locking shaft 32 of the annular locking member 3 is locked to the upper portion connected to the chamfered surface 533. A locking groove 532 is formed.
[0043]
The stopper 534 projects from the front side of the protruding portion 51 on the side opposite to the door so as to cover the locking groove 532 from a position higher than the upper surface of the fixing locking portion 531 by the diameter of the locking shaft 32. Further, the protruding amount of the stopper 534 is longer than the radius of the locking shaft 32.
[0044]
Further, on the door side of the bottom surface of the projecting portion 51, a door contact portion 511 having a substantially rectangular flat plate shape with the same thickness as the guide portion 513 is projected.
A semi-circular door stop groove 512 is formed on the side surface of the door stop portion 511 opposite to the door, and the upper groove surface of the door stop groove 512 is smoothly connected to the bottom surface 515.
[0045]
A rectangular parallelepiped magnet 542 is embedded in the bottom surface 515 between the guide portion 513 and the door stop portion 511.
That is, the protrusion 51 is formed with an opening 541 from the door side, and the magnet 542 is inserted into the opening, and the spacer 543 is further inserted to fix the magnet 542.
[0046]
A slope 514 is formed at the door side (opposite the door stop groove 512) of the guide portion 513, and an anti-sway locking portion 516 swelled in an arc shape protrudes from the middle of the slope 514. It is set up. Engaging shaft 32 abuts on the stopper for locking portion 516 runout bottom 515, so far as attracted to the bottom surface 515 by the magnetic attraction force of the magnet 542 is locked by the stopper for locking portion 516 shake . Here, by forming the steady-state locking portion 516 in an arc shape, the locking shaft 32 can be locked with substantially the same locking force even if the mounting angle of the protruding portion 51 and the floor bracket 2 varies. it can.
[0047]
The material of the protruding portion 51 is a resin having mechanical strength sufficient to lock the locking shaft 32. Further, a material having no magnetism is used so that the magnet 542 is not magnetized.
[0048]
Next, the operation of the magnetic door locking device 1 configured as described above will be described with reference to the drawings.
1 and 8 to 11 are schematic cross-sectional views for explaining a state in which the locking shaft is sucked in the magnetic door locking device of the present embodiment.
[0049]
From the state in which the annular locking member 3 in FIG. 1 is housed in the floor fitting 2, as shown in FIG. 8, the door 7 is opened and the door-contacting member 5 moves from the door side toward the non-door side. As it moves upward, the locking shaft 32 of the annular locking member 3 is attracted upward by the magnetic attractive force of the magnet 542 and abuts against the steady-state locking portion 516.
[0050]
Further, when the door 7 is opened, as shown in FIG. 9, the locking shaft 32 is moved by the steady-state locking portion 516 while being attracted by the magnetic attractive force, and further contacts the bottom surface 515.
[0051]
When the door 7 is opened to the open limit position, as shown in FIG. 10, the locking shaft 32 contacts the door stop groove 512 of the door stop portion 511, so that the door 7 is not further opened.
Thus, the magnet type door locking device 1 functions as a door stop.
[0052]
In this state, when a force is applied to close the door 7 by wind or the like, as shown in FIG. 11, the locking shaft 32 is attracted to the bottom surface 515 by the magnetic attractive force, and the locking portion for steadying is stopped. 516 abuts. Therefore, the door 7 does not move further in the closing direction. Further, the steady stop locking portion 516 functions effectively against a reaction when the door 7 is opened with force. In this way, the magnetic door locking device 1 functions as a steady rest.
[0053]
However, when the door 7 is closed with a large force, the locking shaft 32 over the stopper for locking portions 516 deflection, as shown in FIG. 8, moves in a counter-door side of the stop for the locking portion 516 deflection. When the door 7 is further closed and the door stop member 5 is separated from the upper side of the floor fitting 2, the locking shaft 32 is stored in the storage recess 25 by gravity, and the door 7 can be freely closed. Note that the locking force for locking the locking shaft 32 can be easily adjusted by the magnitude of the magnetic attractive force and the shape of the locking portion 516 for steadying.
[0054]
Next, as shown in FIG. 12, when the locking shaft 32 is rotated to the door side (see FIG. 5) and the door 7 is opened, the locking shaft 32 is chamfered on the chamfered surface 533 of the locking portion 531 for fixing. , Moves on the chamfered surface 533, and is locked in the fixing locking groove 532.
Thus, when the locking shaft 32 is locked in the locking groove 532 for fixing, it cannot be closed even if the door 7 is closed, and functions as an opening device, that is, the door 7 is fixed at a predetermined position. can do.
[0055]
In this state, when a force acts in the direction of opening the door 7 by wind or the like, the locking shaft 32 moves upward along the front surface of the protruding portion 51 and contacts the lower surface of the stopper 534 as shown in FIG. . Therefore, the door 7 does not move in the direction of opening further.
When the locking shaft 32 is lifted and floated from the fixing locking groove 532, the function as an opening tool can be canceled and the door 7 can be closed.
[0056]
【The invention's effect】
As described above in detail, according to the magnet type door locking device of the present invention, it is possible to exert functions as a door stop, a steady rest, and an opening device with a structure in which parts are shared and the number of parts is reduced. it can. Therefore, it is possible to reduce the manufacturing cost by reducing the number of parts. Furthermore, since it is not necessary to attach the door stop and the door opening tool separately to the door or the floor, the appearance and construction efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view for explaining the configuration of a magnet type door locking device according to the present invention.
FIG. 2 is a schematic perspective view of the floor bracket according to the present embodiment.
FIG. 3 is a schematic exploded perspective view for explaining each component of the floor bracket according to the present embodiment.
FIG. 4 is a schematic enlarged cross-sectional view for explaining a state in which the semi-cylindrical portion and the locking claw in the present embodiment are locked so that the rotating shaft does not fall off.
FIG. 5 is a schematic perspective view for explaining a state in which the annular locking member of the floor bracket according to the present embodiment is opened.
FIG. 6 is a schematic perspective view of a door stop member according to the present embodiment.
FIG. 7 is a schematic diagram for explaining the structure of the door stop member of the present embodiment, wherein (a) is a top view, (b) is a side view, and (c) is a front view. , (D) shows a bottom view.
FIG. 8 is a schematic cross-sectional view for explaining a state in which the locking shaft is sucked in the magnet type door locking device of the present embodiment.
FIG. 9 is a schematic cross-sectional view for explaining a state in which the locking shaft moves on the bottom surface in the magnet type door locking device of the present embodiment.
FIG. 10 is a schematic cross-sectional view for explaining a state in which the locking shaft is locked in the door stop groove in the magnet type door locking device of the present embodiment.
FIG. 11 is a schematic cross-sectional view for explaining a state in which the locking shaft is locked to the steadying locking portion in the magnet type door locking device of the present embodiment.
FIG. 12 is a schematic cross-sectional view for explaining a state in which the locking shaft is locked in the fixing locking groove in the magnet type door locking device of the present embodiment.
FIG. 13 is a schematic cross-sectional view for explaining a state in which the locking shaft is locked to the stopper in the magnet type door locking device of the present embodiment.
FIG. 14 is a schematic cross-sectional view for explaining the structure of a door locking device in Japanese Patent Laid-Open No. 2001-3627.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Magnet type door latching device 2 Floor metal fitting 3 Annular latching member 4 Floor metal fitting cover 5 Door contact member 6 Floor surface 7 Door 20 Metal fitting body 21 Bearing part 21a Semi-cylindrical part 21b Locking claw 22 Fixing plate 23 Screw hole 24 Chamfering Surface 25 Storage recess 26 Fixed reinforcement presser 27 Fixed plate 28 Through hole 29 Fixed reinforcement presser 31 Rotating shaft 32 Locking shaft 33 Connecting shaft 41 Slope 42 Storage hole 43 Relief groove 44 Screw hole 45 Fixed reinforcement hole 46, 47 Fixed reinforcement receiver 51 Protruding portion 52 Mounting plate 61 Fixing screw 71 Fixing screw 511 Door stop portion 512 Door stop groove 513 Guide portion 514 Slope 515 Bottom surface 516 Stabilizing locking portion 531 Fixing locking portion 532 Fixing locking groove 533 Chamfered surface 534 Stopper 541 Opening 542 Magnet 543 Spacer 521 Long hole 100 Door locking device 101 Mounting plate 102 Floor surface 103 Locking piece 104 Support shaft 106 Over 107 door 108 engaged member 109 magnet 110 locked portion 113 bearing hole

Claims (5)

A floor bracket fixed to the floor and having a locking member rotatably attached thereto;
A door contact member that is attached to the door and that contacts the locking member or engages the locking member to lock the door;
Comprising
The door stop member is
A magnet provided at the center of the bottom surface of the door stop member, and attracting the locking member;
Provided on the bottom door side of the door stop member, and when the door is opened, the door stop portion in contact with the locking member sucked by the magnet;
An anti-sway which is provided on the opposite side of the bottom surface of the door stop member so as to face the door stop portion and comes into contact with the locking member sucked by the magnet when the opened door attempts to return in the closing direction. Locking part for,
The door is a non-door side end of the door stop member, and is provided on the side opposite the door from the locking portion for locking, and engages with the locking member rotated to the door side, and the door Open fixing means to keep the door open
A magnet type door locking device characterized by comprising:   The magnet type door locking device according to claim 1, wherein the locking portion for steadying is formed in an arcuate shape on the middle stage of the slope formed on the bottom surface on the opposite side of the door.   The opening fixing means is a chamfered surface with which the locking member rotated toward the door contacts, a locking groove for locking the locking member so that the door is not closed, and the door The magnetic door locking device according to claim 1, further comprising a stopper that locks so as not to open.   The floor bracket is covered with a rectangular ring-shaped locking member having a rotation shaft and a locking shaft, a metal fitting body formed with a bearing portion that rotatably supports the rotation shaft, and the metal fitting body. The magnet-type door locking device according to any one of claims 1 to 3, wherein the magnet-type door locking device comprises a floor bracket cover.   The magnet type door lock according to claim 4, wherein the bearing portion is configured by a semi-cylindrical portion bent into a semi-cylindrical shape and a locking claw that locks the rotating shaft so as not to fall. apparatus.

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